Batboard

Had another question about the minitor I. The one that I carry has the three tone slots for the NLN7834A / NLN8503A
reeds. The pager will alert fine for A/B paging but it wont for B/C or Long C. Any suggestions? BTW, the B tone and C tone are the same (524.6).

the pager has jumpers on the board that need to be cut/closed to configure it. not sure what jumpers do what on a I though